5157082601681 has 4 divisors (see below), whose sum is σ = 5181523751664. Its totient is φ = 5132641451700.

The previous prime is 5157082601641. The next prime is 5157082601701. The reversal of 5157082601681 is 1861062807515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5157082601681 is a prime.

It is a super-2 number, since 2×5157082601681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5157082601641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12220574675 + ... + 12220575096.

It is an arithmetic number, because the mean of its divisors is an integer number (1295380937916).

Almost surely, 2^{5157082601681} is an apocalyptic number.

It is an amenable number.

5157082601681 is a deficient number, since it is larger than the sum of its proper divisors (24441149983).

5157082601681 is a wasteful number, since it uses less digits than its factorization.

5157082601681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24441149982.

The product of its (nonzero) digits is 806400, while the sum is 50.

The spelling of 5157082601681 in words is "five trillion, one hundred fifty-seven billion, eighty-two million, six hundred one thousand, six hundred eighty-one".